From 1e163c715550e20e239976a22e00869884713e54 Mon Sep 17 00:00:00 2001
From: Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU>
Date: Sun, 19 Jun 2011 21:45:58 -0700
Subject: fixed build after repo split

---
 softfloat/s_mulAddF32.c | 171 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100755 softfloat/s_mulAddF32.c

(limited to 'softfloat/s_mulAddF32.c')

diff --git a/softfloat/s_mulAddF32.c b/softfloat/s_mulAddF32.c
new file mode 100755
index 0000000..e55a0ba
--- /dev/null
+++ b/softfloat/s_mulAddF32.c
@@ -0,0 +1,171 @@
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "primitives.h"
+#include "internals.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+float32_t
+ softfloat_mulAddF32(
+     int op, uint_fast32_t uiA, uint_fast32_t uiB, uint_fast32_t uiC )
+{
+    bool signA;
+    int_fast16_t expA;
+    uint_fast32_t sigA;
+    bool signB;
+    int_fast16_t expB;
+    uint_fast32_t sigB;
+    bool signC;
+    int_fast16_t expC;
+    uint_fast32_t sigC;
+    bool signProd;
+    uint_fast32_t magBits, uiZ;
+    struct exp16_sig32 normExpSig;
+    int_fast16_t expProd;
+    uint_fast64_t sigProd;
+    bool signZ;
+    int_fast16_t expZ;
+    uint_fast32_t sigZ;
+    int_fast16_t expDiff;
+    uint_fast64_t sigZ64, sigC64;
+    int shiftCount;
+    union ui32_f32 uZ;
+
+    signA = signF32UI( uiA );
+    expA = expF32UI( uiA );
+    sigA = fracF32UI( uiA );
+    signB = signF32UI( uiB );
+    expB = expF32UI( uiB );
+    sigB = fracF32UI( uiB );
+    signC = signF32UI( uiC ) ^ ( op == softfloat_mulAdd_subC );
+    expC = expF32UI( uiC );
+    sigC = fracF32UI( uiC );
+    signProd = signA ^ signB ^ ( op == softfloat_mulAdd_subProd );
+    if ( expA == 0xFF ) {
+        if ( sigA || ( ( expB == 0xFF ) && sigB ) ) goto propagateNaN_ABC;
+        magBits = expB | sigB;
+        goto infProdArg;
+    }
+    if ( expB == 0xFF ) {
+        if ( sigB ) goto propagateNaN_ABC;
+        magBits = expA | sigA;
+        goto infProdArg;
+    }
+    if ( expC == 0xFF ) {
+        if ( sigC ) {
+            uiZ = 0;
+            goto propagateNaN_ZC;
+        }
+        uiZ = uiC;
+        goto uiZ;
+    }
+    if ( ! expA ) {
+        if ( ! sigA ) goto zeroProd;
+        normExpSig = softfloat_normSubnormalF32Sig( sigA );
+        expA = normExpSig.exp;
+        sigA = normExpSig.sig;
+    }
+    if ( ! expB ) {
+        if ( ! sigB ) goto zeroProd;
+        normExpSig = softfloat_normSubnormalF32Sig( sigB );
+        expB = normExpSig.exp;
+        sigB = normExpSig.sig;
+    }
+    expProd = expA + expB - 0x7E;
+    sigA = ( sigA | 0x00800000 )<<7;
+    sigB = ( sigB | 0x00800000 )<<7;
+    sigProd = (uint_fast64_t) sigA * sigB;
+    if ( sigProd < UINT64_C( 0x2000000000000000 ) ) {
+        --expProd;
+        sigProd <<= 1;
+    }
+    signZ = signProd;
+    if ( ! expC ) {
+        if ( ! sigC ) {
+            expZ = expProd - 1;
+            sigZ = softfloat_shortShift64RightJam( sigProd, 31 );
+            goto roundPack;
+        }
+        normExpSig = softfloat_normSubnormalF32Sig( sigC );
+        expC = normExpSig.exp;
+        sigC = normExpSig.sig;
+    }
+    sigC = ( sigC | 0x00800000 )<<6;
+    expDiff = expProd - expC;
+    if ( signProd == signC ) {
+        if ( expDiff <= 0 ) {
+            expZ = expC;
+            sigZ = sigC + softfloat_shift64RightJam( sigProd, 32 - expDiff );
+        } else {
+            expZ = expProd;
+            sigZ64 =
+                sigProd
+                    + softfloat_shift64RightJam(
+                          (uint_fast64_t) sigC<<32, expDiff );
+            sigZ = softfloat_shortShift64RightJam( sigZ64, 32 );
+        }
+        if ( sigZ < 0x40000000 ) {
+            --expZ;
+            sigZ <<= 1;
+        }
+    } else {
+/*** OPTIMIZE BETTER? ***/
+        sigC64 = (uint_fast64_t) sigC<<32;
+        if ( expDiff < 0 ) {
+            signZ = signC;
+            expZ = expC;
+            sigZ64 = sigC64 - softfloat_shift64RightJam( sigProd, - expDiff );
+        } else if ( ! expDiff ) {
+            expZ = expProd;
+            sigZ64 = sigProd - sigC64;
+            if ( ! sigZ64 ) goto completeCancellation;
+            if ( sigZ64 & UINT64_C( 0x8000000000000000 ) ) {
+                signZ ^= 1;
+                sigZ64 = - sigZ64;
+            }
+        } else {
+            expZ = expProd;
+            sigZ64 = sigProd - softfloat_shift64RightJam( sigC64, expDiff );
+        }
+        shiftCount = softfloat_countLeadingZeros64( sigZ64 ) - 1;
+        expZ -= shiftCount;
+        shiftCount -= 32;
+        if ( shiftCount < 0 ) {
+            sigZ = softfloat_shortShift64RightJam( sigZ64, - shiftCount );
+        } else {
+            sigZ = (uint_fast32_t) sigZ64<<shiftCount;
+        }
+    }
+ roundPack:
+    return softfloat_roundPackToF32( signZ, expZ, sigZ );
+ propagateNaN_ABC:
+    uiZ = softfloat_propagateNaNF32UI( uiA, uiB );
+    goto propagateNaN_ZC;
+ infProdArg:
+    if ( magBits ) {
+        uiZ = packToF32UI( signProd, 0xFF, 0 );
+        if ( expC != 0xFF ) goto uiZ;
+        if ( sigC ) goto propagateNaN_ZC;
+        if ( signProd == signC ) goto uiZ;
+    }
+ invalid:
+    softfloat_raiseFlags( softfloat_flag_invalid );
+    uiZ = defaultNaNF32UI;
+ propagateNaN_ZC:
+    uiZ = softfloat_propagateNaNF32UI( uiZ, uiC );
+    goto uiZ;
+ zeroProd:
+    uiZ = uiC;
+    if ( ! ( expC | sigC ) && ( signProd != signC ) ) {
+ completeCancellation:
+        uiZ =
+            packToF32UI( softfloat_roundingMode == softfloat_round_min, 0, 0 );
+    }
+ uiZ:
+    uZ.ui = uiZ;
+    return uZ.f;
+
+}
+
-- 
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